Lubricant-distributer for engines.



No. 878,073. PATENTED FEB. 4, 1908. V. LANCIA.

LUBRIANT lDISTRIBUTER FOR ENGNES.

APPLIUATION FILED MAY 1a. 1907.

UNITED STATES FATNT FFIIE.

VINCENZO LANCIA, OF TURIN, ITALY, ASSIGNOR TO LANCIA a CO., OF TURIN,ITALY.

LUBRICANT-DISTRIBUTER FOR ENGINES.

Specification of Letters Patent.

Patented Feb. 4, 1908.

Application tied May 1a. 1907. sel-iai No. 373.486.

To all whom it may concern:

Be it known that I, VINCENZO LANCIA, a subject of the'King of Italy, andresiding at Turin, in Italy, have invented certain new and usefulImprovements in Lubricant- Distributers for Engines, of which thefollowing is a specification.

This invention relates to an automatic distributing device for thelubrication of engines.

A construction according to this invention is illustrated by way ofexample in the accompanying drawing, in which Figure 1 is a longitudinalsection, and Fig. 2 a cross section.

As will be seen from the drawing the apparatus comprises a cylindricalcasing or box 1 provided with two suction branches 2 3 and two dischargebranches 4 5 and closed by two covers 6 and '7.

In the interior of the box a rotatable cylinder 8 is mounted concentricwith the said box and receiving its movement from a spindle 9, driven bythe engine by means of any desired gearing.

The cylinder 8 is divided into three chambers, two of which, 10 and 11,are provided with holes arranged so -as to establish during the rotationof the cylinder alternate communication of the said chambers with thesuction branch 2 and discharge conduit 5, or with the suction conduit 3and discharge conduit 4, while in the third chamber 12 of circularcross-section is mounted a piston 13 which a helical spring 14 has thetendency to keep in the position shown in Fig. 1. The chambers 1() and11 communicate with the interior of the casing through openings 15 and16, and consequently communicate with the chamber 12 which is open atboth ends. The piston 13 is provided with an axial extension restingagainst the cam face of a cylindrical part 17 secured to the cover 7 ofthe box 1.

Taking as a starting point the position of the piston shown in Fig. 1,if the cylinder 8 is rotated, the chamber 12 will move round the axis ofthe shaft 9 and the piston 13, moving with its extension against the camface of the part 17, will be pushed into the interior of the chamber 12against the action of the helical spring 14. Owing to this movement ofthe piston 13, the total capacity ofthe chamber 11 and the adjoiningpart of the box 1 is increased, and at the same time the total capacityof the chamber 10 and the cylindrical chamber 12 reduced. In this way,by suitably causing the openings in the surface of the cylinder S tocoincide with the openings of the branches 2 3 4 and 5, suction isproduced in the chamber 11, and discharge in the chamber 10, and viceversa when the cylinder 8 makes a half revolution during which, theheight of the cam surface of the cylindrical part 17 decreases, thehelical spring 14 becomes operative and drives the piston 1.3 V

out of the chamber 12. Thus the working is that of a double acting pumpwhich could be, however made a single-acting one, by doing away with thebranches 3 and 4 and establishing communication between the conduit 2andthe oil tank, and the branch 5 and the engine. It is obvious that thedischarge branches for oil could be four or six in number if it weredesired to lubricate four or six cylinders.

What I claim as my invention and desire to secure by Letters Patentis 1. An engine lubricant distributer comprising a cylindrical casingclosed at its ends a rotatable cylinder provided with two chamberscommunicating respectively with the ends of the casing, suction anddischarge branches on the casing communicating with correspondingopenings in the said chambers, a third chamber in said cylindercommunieating at its ends with the two chambers, a displacer piston insaid third chamber and means within the casing for reciprocating thepiston in the cylinder chamber substantially as described.

2. An engine lubricant distributer comprising a cylindrical casingclosed 'at its ends a rotatable cylinder provided with two chamberscommunicating respectively with the ends of the casing, suction anddischarge branches on the casing communicating with correspondingopenings in the said chambers,

a third chamber in said cylinder communil the kind described a casing, acompartment- In testimony whereof I have signed my ed cylinder withinsaid casing, comprising` name to this specification in the presence oftwo chambers with a separating wall and a two subscribing witnesses.

third chamber forming an openeended cylin- VINCENZO LANCIA. 5 der belowthe two chambers, a piston in said Witnesses:

third chamber, and means for operating the LOUIs ALLAN,

same, substantially as describe CARLO CORTA ING.

